Patent · US Active

Transformer filter arrangement

US9853621B2 · kind B2 · utility

1Cited by

5References

20Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Stefan Andersson · Flyinge, SE
Fenghao Mu · Hjo, SE
Johan Wernehag · Malmö, SE

Key dates

Filing date	Feb 16, 2016
Grant date	Dec 26, 2017
Priority date	—
Expiry date	Jun 24, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH03H2001/0078
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A transformer filter arrangement including a transformer having a first winding and a second winding is provided. Both of the first and the second windings are located between an outer border and an inner border, which is inside the outer border. The transformer filter arrangement further includes at least one reactive sub circuit, each including at least one inductor. The first winding of the transformer is divided into a plurality of winding segments. At least a first one of the at least one reactive sub circuit being connected in series with the winding segments of the first winding between two such winding segments, and having at least one of the at least one inductor located inside said inner border.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.